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Finding the Fourth Proportional to 358,392.08, 494,553.66 and 205,428.44

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Solution

The fourth proportional to 358,392.08, 494,553.66 and 205,428.44 is: 283,475.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,392.08 : 494,553.66 = 205,428.44 : x
  2. Step 2: Convert to fraction form
    358,392.08/494,553.66 = 205,428.44/x
  3. Step 3: Cross multiply
    358,392.08x = 494,553.66 × 205,428.44
  4. Step 4: Simplify right side
    358,392.08x = 101,595,386,870.09
  5. Step 5: Solve for x
    x = 101,595,386,870.09/358,392.08
  6. Step 6: Final answer
    x = 283,475.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.